package com.itheima.reggie.controller;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.Result;
import com.itheima.reggie.entity.User;
import com.itheima.reggie.service.UserService;
import com.itheima.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@Slf4j
@RequestMapping("/user")
public class UserController {

    @Autowired
    private UserService userService;
    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 发送手机验证码
     * @param user
     * @param session
     * @return
     */
    @PostMapping("/sendMsg")
    public Result<String> sendMsg(@RequestBody User user, HttpSession session){
        //获取手机号
        String phone = user.getPhone();

        //手机号不存在
        if (StringUtils.isEmpty(phone)){
            return Result.error("手机号为空");
        }

        //生成随机的位验证码
        String code = ValidateCodeUtils.generateValidateCode(4).toString();
        log.info("code = {}", code);

        //调用阿里云提供的短信服务API完成发送短信
        //SMSUtils.sendMessage("瑞吉外卖",phone,code);

        //需要将生成的验证码保存到Session  phone为key
        //session.setAttribute(phone,code);

        //将验证码存到redis里,设置有效期为5分钟
        redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);

        return Result.success("手机验证码发送成功");
    }


    /**
     * 移动端用户登录
     * @param map
     * @param session
     * @return
     */
    @PostMapping("/login")
    public Result<User> login(@RequestBody Map map, HttpSession session){

        //获取手机号
        String phone = map.get("phone").toString();

        //获取验证码
        String code = map.get("code").toString();

        //从Session中获取保存的验证码
        //Object codeInSession = session.getAttribute(phone);

        //从redis里获取验证码
        Object codeInSession = redisTemplate.opsForValue().get(phone);

        //进行验证码的比对
        if(codeInSession != null && codeInSession.equals(code)){
            //如果比对成功，说明登录成功

            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone,phone);

            User user = userService.getOne(queryWrapper);

            //判断当前手完成注册机号对应的用户是否为新用户，是新用户自动
            if (user == null){
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            log.info("userId:{}",user.getId());
            session.setAttribute("user",user.getId());

            //用户登录成功，删除redis里的验证码
            redisTemplate.delete(phone);

            return Result.success(user);
        }

        return Result.error("登录失败");
    }

}
